Cita APA

Sybel, H. v., & Duff Gordon, L. (1861). The history and literature of the Crusades. Chapman and Hall.

Chicago Style (17th ed.) Citation

Sybel, Heinrich von, i Lucie Duff Gordon. The History and Literature of the Crusades. London: Chapman and Hall, 1861.

Cita MLA

Sybel, Heinrich von, i Lucie Duff Gordon. The History and Literature of the Crusades. Chapman and Hall, 1861.